If you have no CF cards already and have no plans to shoot much in the way of video then the SDHC cards will work fine and save you a few dollars. In the overall scheme of things the CF cards are not a major expenditure. You can save by buying slower 45 mbs cards as for most shooting situations they will work just as well as the faster cards that cost a great deal more. A 32GB is currently less than two 16GB which is also a small savings.
Unless I need the cards right away I wait for a Lexar or Sundisk rebate to be offered. I have saved as much as 50% by doing this.